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Comparing Coro/Changes (file contents):
Revision 1.544 by root, Thu Nov 11 00:09:08 2010 UTC vs.
Revision 1.602 by root, Wed Dec 5 00:14:22 2012 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::coroaio (perl leaks like hell). 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: unready_all
5TODO: myhttpd header parsing
6TODO: channel->maxsize(newsize)? 4TODO: channel->maxsize(newsize)?
7TODO: http://www.microsoft.com/msj/archive/s2ce.aspx 5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6TODO: __GCC_HAVE_DWARF2_CFI_ASM
7
8TODO: add peerhost/peerport from IO::Socket::INET etc.
9
10 - implement 5.17 compatibility by almost blindly applying a
11 good-looking patch by Father Chrysostomos.
12 - support magic values as timed_io_once args.
13 - recommend AnyEvent 7+ or EV 4+, also require EV
14 version 4 or newer for Coro::EV.
15
166.10 Tue Oct 9 01:14:27 CEST 2012
17 - updated ecb.h, it had a typo that caused it to not compile on many
18 big endian systems (reported by many people).
19 - disable memory fences in ecb.h to improve portability.
20
216.09 Sat Oct 6 23:25:02 CEST 2012
22 - Coro::EV I/O watchers were not interruptible by exceptions
23 (Coro::State::throw) (testcase by sten).
24 - ->throw now puts threads into the ready queue, as this seems to
25 be expected by existing code, and code that doesn't cope with spurious
26 wakeups needs fixing anyway.
27 - use fd -1 in mmap.
28 - cast I32 to int in error message printf.
29 - warn about broken so-called "hardened" kernels.
30
316.08 Fri Apr 13 12:05:47 CEST 2012
32 - be more aggressive about exiting like perl does - formerly,
33 exiting from the non-main thread would not execute END blocks.
34
356.07 Fri Nov 11 21:21:48 CET 2011
36 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
37 - update ecb.h.
38
396.06 Mon Aug 8 23:59:48 CEST 2011
40 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
41 backend, which is an order of magnitude slower. unfortunately, cygwins
42 pthread implementation isn't very complete either, so allocate the stack
43 twice just to be sure.
44 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
45 in its ithreaded perl - best recompile cygwin and use the 'w'indows
46 backend for much better performance. also disable ithreads for
47 even better performance...).
48
496.05 Thu Aug 4 21:36:36 CEST 2011
50 - blush, condvar values would not be propagated from send to recv anymore
51 (reported by Chip Salzenberg).
52 - use exponential increase for the readline buffer length in
53 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
54
556.04 Wed Aug 3 17:15:45 CEST 2011
56 - use even more efficient and more compatible condvars for
57 compatibility to AnyEvent 6.x :)
58 - more inconsequential ecb.h updates.
59
606.03 Wed Aug 3 11:41:30 CEST 2011
61 - change how Coro patches AnyEvent condvars for compatibility to
62 AnyEvent 6.x.
63 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
64 hasn't been included.
65
666.02 Wed Jul 13 04:35:19 CEST 2011
67 - "improve portability to Gentoo" - gentoo manages to put perl variables
68 in memory areas that are farther than 2gb apart, which the jit couldn't
69 handle and barfed. now it's just a bit slower on gentoo and similar
70 systems.
71
726.01 Sun Jul 3 12:31:14 CEST 2011
73 - workarounds are good, but the test for whether pthreads are used
74 was not good. thisone should be better.
75 - check differently whether gcc generates cfi instructions itself.
76
776.0 Wed Jun 29 19:43:35 CEST 2011
78 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
79 destroyed and cleaned up automatically (e.g. async { schedule }).
80 - implement a JIT compiler for part of the thread switch code,
81 which gives a 50% speed improvement on threaded perls, and
82 about 4% on non-thraeded perls (so threaded perls now finally
83 reach about half the speed of non-threaded perls).
84 - slightly modernise Coro::Intro, add section about rouse functions.
85 - avoid DEFSV and ERRSV, giving another 10% improvement
86 in thread switching.
87 - Coro::State->is_destroyed is now called is_zombie.
88 - implement a Coro->safe_cancel method that might fail, but
89 cancels in a "safer" way if it succeeds.
90 - add preliminary support for DEBUGGING perls.
91 - get rid of two hash-accesses when initialising a new Coro - this
92 speeds up coro creation by almost a factor of two.
93 - croak when a coro that is being cancelled tries to block
94 (e.g. while executing a guard block), instead of crashing or
95 deadlocking.
96 - use a more robust and also faster method to identify Coro::State
97 objects - speeds up everything a bit.
98 - implement Coro->cancel in XS for a 20% speed improvement, and to
99 be able to implement mutual cancellation.
100 - speed up context switches by a percent or two by more efficiently
101 allocating context stack entries.
102 - implement Coro->join and Coro->on_destroy in XS for a speedup and
103 a reduction in memory use.
104 - cancelling a coro while it itself is cancelling another coro is
105 now supported and working, instead of triggering an assertion.
106 - be a bit more crash-resistant when calling (buggy) on_destroy
107 callbacks (best effort).
108 - move on_destroy into the slf_frame, to allow extension slf
109 functions to have destructors.
110 - get rid if coro refcounting - simply crash in other interpreter
111 threads by nulling the pointers on clone.
112 - simplify warn/die hook handling when loading Coro - the convoluted
113 logic seems to be no longer neccessary.
114 - use libecb instead of our own home-grown gcc hacks.
115 - document alternatives to Coro::LWP. Please use them :)
116 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
117 sigaltstack. Really. wine suffers from it, erlang suffers from it,
118 and it's known since at least 2006.
119
1205.372 Wed Feb 23 06:14:30 CET 2011
121 - apparently mingw doesn't provide a working gettimeofday, try to
122 work around that by relying on Time::HiRes (indirectly brought to
123 my attention by Max Maischein).
124 - fix some portability issues when Time::HiRes was used.
125
1265.371 Mon Feb 21 14:36:08 CET 2011
127 - backport to windows process emulation code again.
128
1295.37 Sat Feb 19 07:49:44 CET 2011
130 - add a big "Coro thread life cycle" section to "man Coro".
131 - try a tentative workaround against the breakage that 5.13 has
132 introduced without depreciation period. sigh.
133 - no longer use Time::HiRes if gettimeofday is available, which
134 saves quite a lot of memory.
135
1365.36 Sun Feb 13 05:33:41 CET 2011
137 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
138 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
139 method call.
140 - undocument Coro::Timer::sleep and obsolete whole module.
141 - optimise Coro::Timer::timeout memory and cpu usage.
142 - slightly updated Coro::Intro for recent changes.
143 - do not initialise PL_dirty anymore.
8 144
95.25 Thu Nov 11 01:08:39 CET 2010 1455.25 Thu Nov 11 01:08:39 CET 2010
10 - try a different approach on netbsd - netbsd 5 finally has marginally 146 - try a different approach on netbsd - netbsd 5 finally has marginally
11 working pthreads, but still broken ucontext/sigaltstack. 147 working pthreads, but still broken ucontext/sigaltstack.
12 - openbsd 4.8 finally got their act together, Coro works out of the box 148 - openbsd 4.8 finally got their act together, Coro works out of the box

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